| /kernel/linux/linux-5.10/fs/nfs/flexfilelayout/ |
| D | flexfilelayout.c | 1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (c) 2014, Primary Data, Inc. All rights reserved.
43 struct nfs4_ff_layout_mirror *mirror);
52 pnfs_init_ds_commit_info(&ffl->commit_info); in ff_layout_alloc_layout_hdr()
53 INIT_LIST_HEAD(&ffl->error_list); in ff_layout_alloc_layout_hdr()
54 INIT_LIST_HEAD(&ffl->mirrors); in ff_layout_alloc_layout_hdr()
55 ffl->last_report_time = ktime_get(); in ff_layout_alloc_layout_hdr()
56 ffl->commit_info.ops = &ff_layout_commit_ops; in ff_layout_alloc_layout_hdr()
57 return &ffl->generic_hdr; in ff_layout_alloc_layout_hdr()
68 list_for_each_entry_safe(err, n, &ffl->error_list, list) { in ff_layout_free_layout_hdr()
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| D | flexfilelayoutdev.c | 1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (c) 2014, Primary Data, Inc. All rights reserved.
29 nfs4_put_deviceid_node(&mirror_ds->id_node); in nfs4_ff_layout_put_deviceid()
34 nfs4_print_deviceid(&mirror_ds->id_node.deviceid); in nfs4_ff_layout_free_deviceid()
35 nfs4_pnfs_ds_put(mirror_ds->ds); in nfs4_ff_layout_free_deviceid()
36 kfree(mirror_ds->ds_versions); in nfs4_ff_layout_free_deviceid()
40 /* Decode opaque device data and construct new_ds using it */
55 int i, ret = -ENOMEM; in nfs4_ff_alloc_deviceid_node()
66 nfs4_init_deviceid_node(&new_ds->id_node, in nfs4_ff_alloc_deviceid_node()
68 &pdev->dev_id); in nfs4_ff_alloc_deviceid_node()
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| D | flexfilelayout.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
3 * NFSv4 flexfile layout driver data structures.
5 * Copyright (c) 2014, Primary Data, Inc. All rights reserved.
20 /* XXX: Let's filter out insanely large mirror count for now to avoid oom
45 struct list_head list; /* linked in mirror error_list */
146 if (idx < fls->mirror_array_cnt) in FF_LAYOUT_COMP()
147 return fls->mirror_array[idx]; in FF_LAYOUT_COMP()
154 struct nfs4_ff_layout_mirror *mirror = FF_LAYOUT_COMP(lseg, idx); in FF_LAYOUT_DEVID_NODE() local
156 if (mirror != NULL) { in FF_LAYOUT_DEVID_NODE()
157 struct nfs4_ff_layout_ds *mirror_ds = mirror->mirror_ds; in FF_LAYOUT_DEVID_NODE()
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| /kernel/linux/linux-4.19/fs/nfs/flexfilelayout/ |
| D | flexfilelayout.c | 4 * Copyright (c) 2014, Primary Data, Inc. All rights reserved.
40 struct nfs4_ff_layout_mirror *mirror);
49 INIT_LIST_HEAD(&ffl->error_list); in ff_layout_alloc_layout_hdr()
50 INIT_LIST_HEAD(&ffl->mirrors); in ff_layout_alloc_layout_hdr()
51 ffl->last_report_time = ktime_get(); in ff_layout_alloc_layout_hdr()
52 return &ffl->generic_hdr; in ff_layout_alloc_layout_hdr()
62 list_for_each_entry_safe(err, n, &FF_LAYOUT_FROM_HDR(lo)->error_list, in ff_layout_free_layout_hdr()
64 list_del(&err->list); in ff_layout_free_layout_hdr()
76 return -ENOBUFS; in decode_pnfs_stateid()
77 stateid->type = NFS4_PNFS_DS_STATEID_TYPE; in decode_pnfs_stateid()
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| D | flexfilelayoutdev.c | 1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (c) 2014, Primary Data, Inc. All rights reserved.
29 nfs4_put_deviceid_node(&mirror_ds->id_node); in nfs4_ff_layout_put_deviceid()
34 nfs4_print_deviceid(&mirror_ds->id_node.deviceid); in nfs4_ff_layout_free_deviceid()
35 nfs4_pnfs_ds_put(mirror_ds->ds); in nfs4_ff_layout_free_deviceid()
36 kfree(mirror_ds->ds_versions); in nfs4_ff_layout_free_deviceid()
40 /* Decode opaque device data and construct new_ds using it */
55 int i, ret = -ENOMEM; in nfs4_ff_alloc_deviceid_node()
66 nfs4_init_deviceid_node(&new_ds->id_node, in nfs4_ff_alloc_deviceid_node()
68 &pdev->dev_id); in nfs4_ff_alloc_deviceid_node()
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| D | flexfilelayout.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
3 * NFSv4 flexfile layout driver data structures.
5 * Copyright (c) 2014, Primary Data, Inc. All rights reserved.
20 /* XXX: Let's filter out insanely large mirror count for now to avoid oom
45 struct list_head list; /* linked in mirror error_list */
146 if (idx < fls->mirror_array_cnt) in FF_LAYOUT_COMP()
147 return fls->mirror_array[idx]; in FF_LAYOUT_COMP()
154 struct nfs4_ff_layout_mirror *mirror = FF_LAYOUT_COMP(lseg, idx); in FF_LAYOUT_DEVID_NODE() local
156 if (mirror != NULL) { in FF_LAYOUT_DEVID_NODE()
157 struct nfs4_ff_layout_ds *mirror_ds = mirror->mirror_ds; in FF_LAYOUT_DEVID_NODE()
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| /kernel/linux/linux-5.10/tools/testing/selftests/vm/ |
| D | hmm-tests.c | 1 // SPDX-License-Identifier: GPL-2.0
4 * the linux kernel to help device drivers mirror a process address space in
6 * makes communication and data exchange a lot easier.
38 void *mirror; member
50 #define ALIGN(x, a) (((x) + (a - 1)) & (~((a) - 1)))
82 self->page_size = sysconf(_SC_PAGE_SIZE); in FIXTURE_SETUP()
83 self->page_shift = ffs(self->page_size) - 1; in FIXTURE_SETUP()
85 self->fd = hmm_open(0); in FIXTURE_SETUP()
86 ASSERT_GE(self->fd, 0); in FIXTURE_SETUP()
91 self->page_size = sysconf(_SC_PAGE_SIZE); in FIXTURE_SETUP()
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| /kernel/linux/linux-4.19/mm/ |
| D | hmm.c | 42 * struct hmm - HMM per mm struct
63 * hmm_register - register HMM against an mm (HMM internal)
72 struct hmm *hmm = READ_ONCE(mm->hmm); in hmm_register()
77 * hence we should always have pre-allocated an new hmm struct in hmm_register()
86 INIT_LIST_HEAD(&hmm->mirrors); in hmm_register()
87 init_rwsem(&hmm->mirrors_sem); in hmm_register()
88 atomic_set(&hmm->sequence, 0); in hmm_register()
89 hmm->mmu_notifier.ops = NULL; in hmm_register()
90 INIT_LIST_HEAD(&hmm->ranges); in hmm_register()
91 spin_lock_init(&hmm->lock); in hmm_register()
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| /kernel/linux/linux-4.19/drivers/md/ |
| D | dm-raid1.c | 3 * Copyright (C) 2005-2008 Red Hat, Inc. All rights reserved.
8 #include "dm-bio-record.h"
16 #include <linux/device-mapper.h>
17 #include <linux/dm-io.h>
18 #include <linux/dm-dirty-log.h>
19 #include <linux/dm-kcopyd.h>
20 #include <linux/dm-region-hash.h>
30 #define errors_handled(p) ((p)->features & DM_RAID1_HANDLE_ERRORS)
31 #define keep_log(p) ((p)->features & DM_RAID1_KEEP_LOG)
35 /*-----------------------------------------------------------------
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| /kernel/linux/linux-5.10/drivers/md/ |
| D | dm-raid1.c | 3 * Copyright (C) 2005-2008 Red Hat, Inc. All rights reserved.
8 #include "dm-bio-record.h"
16 #include <linux/device-mapper.h>
17 #include <linux/dm-io.h>
18 #include <linux/dm-dirty-log.h>
19 #include <linux/dm-kcopyd.h>
20 #include <linux/dm-region-hash.h>
30 #define errors_handled(p) ((p)->features & DM_RAID1_HANDLE_ERRORS)
31 #define keep_log(p) ((p)->features & DM_RAID1_KEEP_LOG)
35 /*-----------------------------------------------------------------
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| /kernel/linux/linux-4.19/include/linux/ |
| D | hmm.h | 33 * Use HMM address space mirroring if you want to mirror range of the CPU page
34 * table of a process into a device page table. Here, "mirror" means "keep
35 * synchronized". Prerequisites: the device must provide the ability to write-
49 * updates to each device driver that has registered a mirror. It also provides
83 * hmm_pfn_flag_e - HMM flag enums
104 * hmm_pfn_value_e - HMM pfn special value
131 * struct hmm_range - track invalidation lock on virtual address range
156 * hmm_pfn_to_page() - return struct page pointed to by a valid HMM pfn
167 if (pfn == range->values[HMM_PFN_NONE]) in hmm_pfn_to_page()
169 if (pfn == range->values[HMM_PFN_ERROR]) in hmm_pfn_to_page()
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| /kernel/linux/linux-4.19/fs/nfs/ |
| D | pagelist.c | 36 &desc->pg_mirrors[desc->pg_mirror_idx] : in nfs_pgio_current_mirror()
37 &desc->pg_mirrors[0]; in nfs_pgio_current_mirror()
45 struct nfs_pgio_mirror *mirror = nfs_pgio_current_mirror(desc); in nfs_pgheader_init() local
48 hdr->req = nfs_list_entry(mirror->pg_list.next); in nfs_pgheader_init()
49 hdr->inode = desc->pg_inode; in nfs_pgheader_init()
50 hdr->cred = hdr->req->wb_context->cred; in nfs_pgheader_init()
51 hdr->io_start = req_offset(hdr->req); in nfs_pgheader_init()
52 hdr->good_bytes = mirror->pg_count; in nfs_pgheader_init()
53 hdr->io_completion = desc->pg_io_completion; in nfs_pgheader_init()
54 hdr->dreq = desc->pg_dreq; in nfs_pgheader_init()
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| /kernel/linux/linux-5.10/arch/arm/mach-omap1/ |
| D | lcd_dma.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * linux/arch/arm/mach-omap1/lcd_dma.c
5 * Extracted from arch/arm/plat-omap/dma.c
6 * Copyright (C) 2003 - 2008 Nokia Corporation
11 * OMAP2/3 support Copyright (C) 2004-2007 Texas Instruments, Inc.
13 * Some functions based on earlier dma-omap.c Copyright (C) 2001 RidgeRun, Inc.
16 * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com>
26 #include <linux/omap-dma.h>
52 void (*callback)(u16 status, void *data);
59 int mirror; member
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| /kernel/linux/linux-4.19/arch/arm/mach-omap1/ |
| D | lcd_dma.c | 2 * linux/arch/arm/mach-omap1/lcd_dma.c
4 * Extracted from arch/arm/plat-omap/dma.c
5 * Copyright (C) 2003 - 2008 Nokia Corporation
10 * OMAP2/3 support Copyright (C) 2004-2007 Texas Instruments, Inc.
12 * Some functions based on earlier dma-omap.c Copyright (C) 2001 RidgeRun, Inc.
15 * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com>
30 #include <linux/omap-dma.h>
56 void (*callback)(u16 status, void *data);
63 int mirror; member
103 void omap_set_lcd_dma_b1_mirror(int mirror) in omap_set_lcd_dma_b1_mirror() argument
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| /kernel/linux/linux-5.10/fs/nfs/ |
| D | pagelist.c | 1 // SPDX-License-Identifier: GPL-2.0-only
37 if (desc->pg_ops->pg_get_mirror) in nfs_pgio_get_mirror()
38 return desc->pg_ops->pg_get_mirror(desc, idx); in nfs_pgio_get_mirror()
39 return &desc->pg_mirrors[0]; in nfs_pgio_get_mirror()
45 return nfs_pgio_get_mirror(desc, desc->pg_mirror_idx); in nfs_pgio_current_mirror()
52 if (desc->pg_ops->pg_set_mirror) in nfs_pgio_set_current_mirror()
53 return desc->pg_ops->pg_set_mirror(desc, idx); in nfs_pgio_set_current_mirror()
54 return desc->pg_mirror_idx; in nfs_pgio_set_current_mirror()
61 struct nfs_pgio_mirror *mirror = nfs_pgio_current_mirror(desc); in nfs_pgheader_init() local
64 hdr->req = nfs_list_entry(mirror->pg_list.next); in nfs_pgheader_init()
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| /kernel/linux/linux-5.10/drivers/crypto/marvell/octeontx/ |
| D | otx_cptpf_ucode.c | 1 // SPDX-License-Identifier: GPL-2.0
25 /* tar header as defined in POSIX 1003.1-1990. */
64 if (eng_grp->g->engs_num > OTX_CPT_MAX_ENGINES) { in get_cores_bmap()
66 eng_grp->g->engs_num); in get_cores_bmap()
71 if (eng_grp->engs[i].type) { in get_cores_bmap()
73 eng_grp->engs[i].bmap, in get_cores_bmap()
74 eng_grp->g->engs_num); in get_cores_bmap()
75 bmap.size = eng_grp->g->engs_num; in get_cores_bmap()
82 eng_grp->idx); in get_cores_bmap()
94 return is_eng_type(eng_grps->eng_types_supported, eng_type); in dev_supports_eng_type()
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| /kernel/linux/linux-5.10/drivers/net/ethernet/mellanox/mlxsw/ |
| D | core_acl_flex_actions.c | 1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
2 /* Copyright (c) 2017-2018 Mellanox Technologies. All rights reserved */
34 * group - When set, the binding is of an ACL group. When cleared,
144 return jhash2((u32 *) fa_cookie->cookie, in mlxsw_afa_cookie_hash()
145 fa_cookie->cookie_len / sizeof(u32), seed); in mlxsw_afa_cookie_hash()
148 static u32 mlxsw_afa_cookie_key_hashfn(const void *data, u32 len, u32 seed) in mlxsw_afa_cookie_key_hashfn() argument
150 const struct flow_action_cookie *fa_cookie = data; in mlxsw_afa_cookie_key_hashfn()
155 static u32 mlxsw_afa_cookie_obj_hashfn(const void *data, u32 len, u32 seed) in mlxsw_afa_cookie_obj_hashfn() argument
157 const struct mlxsw_afa_cookie *cookie = data; in mlxsw_afa_cookie_obj_hashfn()
159 return mlxsw_afa_cookie_hash(&cookie->fa_cookie, seed); in mlxsw_afa_cookie_obj_hashfn()
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| /kernel/linux/linux-5.10/drivers/staging/fbtft/ |
| D | fb_uc1611.c | 1 // SPDX-License-Identifier: GPL-2.0+
5 * The display is 4-bit grayscale (16 shades) 240x160.
29 * V_LCD = (C_V0 + C_PM × pot) * (1 + (T - 25) * temp)
34 /* BR -> actual ratio: 0-3 -> 5, 10, 11, 13 */
37 MODULE_PARM_DESC(ratio, "BR[1:0] Bias voltage ratio: 0-3 (default: 2)");
41 MODULE_PARM_DESC(gain, "GN[1:0] Bias voltage gain: 0-3 (default: 3)");
45 MODULE_PARM_DESC(pot, "PM[6:0] Bias voltage pot.: 0-63 (default: 16)");
47 /* TC -> % compensation per deg C: 0-3 -> -.05, -.10, -.015, -.20 */
50 MODULE_PARM_DESC(temp, "TC[1:0] Temperature compensation: 0-3 (default: 0)");
52 /* PC[1:0] -> LCD capacitance: 0-3 -> <20nF, 20-28 nF, 29-40 nF, 40-56 nF */
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| /kernel/linux/linux-4.19/drivers/staging/fbtft/ |
| D | fb_uc1611.c | 1 // SPDX-License-Identifier: GPL-2.0+
5 * The display is 4-bit grayscale (16 shades) 240x160.
29 * V_LCD = (C_V0 + C_PM × pot) * (1 + (T - 25) * temp)
34 /* BR -> actual ratio: 0-3 -> 5, 10, 11, 13 */
37 MODULE_PARM_DESC(ratio, "BR[1:0] Bias voltage ratio: 0-3 (default: 2)");
41 MODULE_PARM_DESC(gain, "GN[1:0] Bias voltage gain: 0-3 (default: 3)");
45 MODULE_PARM_DESC(pot, "PM[6:0] Bias voltage pot.: 0-63 (default: 16)");
47 /* TC -> % compensation per deg C: 0-3 -> -.05, -.10, -.015, -.20 */
50 MODULE_PARM_DESC(temp, "TC[1:0] Temperature compensation: 0-3 (default: 0)");
52 /* PC[1:0] -> LCD capacitance: 0-3 -> <20nF, 20-28 nF, 29-40 nF, 40-56 nF */
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| /kernel/linux/linux-5.10/fs/btrfs/ |
| D | disk-io.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
30 static inline u64 btrfs_sb_offset(int mirror) in btrfs_sb_offset() argument
33 if (mirror) in btrfs_sb_offset()
34 return start << (BTRFS_SUPER_MIRROR_SHIFT * mirror); in btrfs_sb_offset()
84 int mirror);
96 * fs_info->subvol_srcu
102 if (refcount_inc_not_zero(&root->refs)) in btrfs_grab_root()
131 int btree_lock_page_hook(struct page *page, void *data,
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| /kernel/linux/linux-4.19/Documentation/vm/ |
| D | hmm.rst | 7 Provide infrastructure and helpers to integrate non-conventional memory (device
23 CPU page-table mirroring works and the purpose of HMM in this context. The
25 Finally, the last section presents a new migration helper that allows lever-
52 For flat data sets (array, grid, image, ...) this isn't too hard to achieve but
53 complex data sets (list, tree, ...) are hard to get right. Duplicating a
54 complex data set needs to re-map all the pointer relations between each of its
56 duplicate data set and addresses.
58 Split address space also means that libraries cannot transparently use data
60 might have to duplicate its input data set using the device specific memory
71 are only do-able with a shared address space. It is also more reasonable to use
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| /kernel/linux/linux-5.10/drivers/media/platform/omap/ |
| D | omap_voutdef.h | 14 #include <media/videobuf2-dma-contig.h>
15 #include <media/v4l2-ctrls.h>
119 /* common v4l buffer stuff -- must be first */
131 /* per-device data structure */
151 /* Lock to protect the shared data structures in ioctl */
155 bool mirror; member
186 return (vout->rotation == dss_rotation_90_degree || in is_rotation_90_or_270()
187 vout->rotation == dss_rotation_270_degree); in is_rotation_90_or_270()
195 return vout->rotation || vout->mirror; in is_rotation_enabled()
203 if (!vout->mirror) in calc_rotation()
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| /kernel/linux/linux-4.19/drivers/media/platform/omap/ |
| D | omap_voutdef.h | 14 #include <media/v4l2-ctrls.h>
116 /* per-device data structure */
145 /* non-NULL means streaming is in progress. */
153 /* Lock to protect the shared data structures in ioctl */
157 bool mirror; member
193 return (vout->rotation == dss_rotation_90_degree || in is_rotation_90_or_270()
194 vout->rotation == dss_rotation_270_degree); in is_rotation_90_or_270()
202 return vout->rotation || vout->mirror; in is_rotation_enabled()
210 if (!vout->mirror) in calc_rotation()
211 return vout->rotation; in calc_rotation()
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| /kernel/linux/linux-4.19/fs/btrfs/ |
| D | disk-io.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
31 static inline u64 btrfs_sb_offset(int mirror) in btrfs_sb_offset() argument
34 if (mirror) in btrfs_sb_offset()
35 return start << (BTRFS_SUPER_MIRROR_SHIFT * mirror); in btrfs_sb_offset()
99 * fs_info->subvol_srcu
103 if (refcount_inc_not_zero(&root->refs)) in btrfs_grab_fs_root()
110 if (refcount_dec_and_test(&root->refs)) in btrfs_put_fs_root()
119 u32 btrfs_csum_data(const char *data, u32 seed, size_t len);
142 int btree_lock_page_hook(struct page *page, void *data,
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| /kernel/linux/linux-5.10/Documentation/admin-guide/device-mapper/ |
| D | dm-clone.rst | 1 .. SPDX-License-Identifier: GPL-2.0-only
4 dm-clone
10 dm-clone is a device mapper target which produces a one-to-one copy of an
11 existing, read-only source device into a writable destination device: It
12 presents a virtual block device which makes all data appear immediately, and
15 The main use case of dm-clone is to clone a potentially remote, high-latency,
16 read-only, archival-type block device into a writable, fast, primary-type device
17 for fast, low-latency I/O. The cloned device is visible/mountable immediately
21 For example, one could restore an application backup from a read-only copy,
26 When the cloning completes, the dm-clone table can be removed altogether and be
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